The trays are provided in black, and can be neatly overlapped to create a fully interlocking continuous grid roof panel .Easy and quick to lay. Ready for the water-retaining drainage for perfect green roofs. They are lightweight and can be easily cut to size to fit any roof shape. One sheet for drainage or water storage.This sheet amalgamates the functions of , water storage, and high-performance drainage! Ribs make it unusually compression-resistant, so that it will sustain even heavy loads safely. It provides an extremely serviceable and economical foundation for green roofs. Offers high drainage capacity for green roofs. Is capable of retaining 7.2 l/m² of water as a reserve for periods of draught. Features the outstanding compressive strength and an enlarged water retention capacity thanks to its innovative 20-mm high octagonal dimples.
High drainage or storage capacity membrane for green roofs.